"use strict";
let username = "xiaowang";
let age = 123;
let bool = true;
let msg;
msg = null;
let msg2;
//数组只能存放同一种数据类型
let array = [1, 2, 3];
let array2 = ["xiaowang"];
let array3 = ["xiaowang"];
let obj = {
    id: 1,
    name: "xiaowang"
};
let array4 = [];
const fun = () => {
};
console.log(obj.id);
let temp = [1, "xiaowang", true];
// let username2 = "xiaowang"
// let obj2 = {id:1}
const odiv = document.getElementById("#app");
